1102203021 has 16 divisors (see below), whose sum is σ = 1482287040. Its totient is φ = 728488320.

The previous prime is 1102203019. The next prime is 1102203031. The reversal of 1102203021 is 1203022011.

It is not a de Polignac number, because 1102203021 - 2¹ = 1102203019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1102202988 and 1102203006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1102203031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 167041 + ... + 173513.

It is an arithmetic number, because the mean of its divisors is an integer number (92642940).

Almost surely, 2^1102203021 is an apocalyptic number.

It is an amenable number.

1102203021 is a deficient number, since it is larger than the sum of its proper divisors (380084019).

1102203021 is a wasteful number, since it uses less digits than its factorization.

1102203021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6956.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 1102203021 is about 33199.4430826784. The cubic root of 1102203021 is about 1032.9687876647.

Adding to 1102203021 its reverse (1203022011), we get a palindrome (2305225032).

The spelling of 1102203021 in words is "one billion, one hundred two million, two hundred three thousand, twenty-one".